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Windows 7: virus checker

I have Avast but my trial is up in about 2 weeks and I want a software for 3 computer. I use to have McAfee but it really gums up your system. Anyway what would you recommend? I have a 64 bit OS if that makes a difference.

Ooh, you are getting into a touchy topic. There are many different opinions on this site, and I fear the start of a debate.
As far as I can see, the top free programs on this site are Avast! home edition and Microsoft Security Essentials. The highest rated paid program is Eset.

Personally, I use Microsoft Security Essentials. I find that it is quite lightweight and fast, and does a good job catching threats.

Every post that I have read indicates that MSE is very good. The only less than fully complimentary comment indicated that anti virus updates are not always timely. Bottom line, I do agree with Johnathan and would use MSE, if I decide to change my Anti Virus.

One thing I wanted to mention since the OP was taking about McAfee hogging system resources, is Norton is conducting a "Performance Challenge":

No one likes a sluggish computer. So we designed Norton™ Internet Security 2010 to be the fastest and lightest security suite you can buy.*

38% Faster Total Performance

How do you measure performance? PassMark Software found 16 different ways. Combine the results and Norton Internet Security 2010 performs better than any other security suite tested.*61% Faster Scan Speed

Norton Internet Security 2010 scanned for malware faster than any other product tested – 61% faster than the competitive average.*70% Less Memory

Norton Internet Security 2010 uses close to half the memory of its closest competitor – and a whopping 70% less memory than used by the average Internet security suite.*6 Times More Frequent Updates

Norton streams updates to your desktop – providing protection from the latest threats over 260 times a day – or nearly 6 times more often than its closest competitor.**

Mouse MS lasermouse 5000 -'cos it scrolls smoothly, no wheel click Hard Drives 1 x250 gig
1 x 500 gig Internet Speed 10mb - cable Other Info The mouse took most research. I hate that click on the wheel, this one has the old fashioned smooth wheel. There aren't many about.

One thing I wanted to mention since the OP was taking about McAfee hogging system resources, is Norton is conducting a "Performance Challenge":

No one likes a sluggish computer. So we designed Norton™ Internet Security 2010 to be the fastest and lightest security suite you can buy.*

38% Faster Total Performance

How do you measure performance? PassMark Software found 16 different ways. Combine the results and Norton Internet Security 2010 performs better than any other security suite tested.*61% Faster Scan Speed

Norton Internet Security 2010 scanned for malware faster than any other product tested – 61% faster than the competitive average.*70% Less Memory

Norton Internet Security 2010 uses close to half the memory of its closest competitor – and a whopping 70% less memory than used by the average Internet security suite.*6 Times More Frequent Updates

Norton streams updates to your desktop – providing protection from the latest threats over 260 times a day – or nearly 6 times more often than its closest competitor.**

virus checker for xp machineHave not fired up my xp machine in quite a while, it is running extremely slow. Is there a downloadable and transferable to cd a virus/malware program that would run from the cd on bootup.

System Security

Why is there no spell checker in ie9I like ie9 but i stopped using it because it has no spell checker. Is there a spell checker add on for ie9? Why wont Microsoft put a spell checker in ie9?
thanks

Browsers & Mail

spell checkeram using windows 7, e-machines, model 1831, 64 bit. I think I had a spell checker that I could use in word pad, My pc crashed and when I got it out of the shop I no longer had it. I am not positive I had it to begin with, at least in word pad, but had it some where. Please, bear with me. How...